Question

rekha has 3 buckets with total weight of 20 kg two of them weight 3/5 kg and 1/7 what us the weight if the third bucets​

Answer 1

Answer:

Rekha has 3 buckets.

Total weight of 3 buckets = 20 kg

First bucket = 3/5 kg

Second bucket = 1/7 kg

Third bucket = x

So

$\frac{3}{5}$ + $\frac{1}{7}$ + x = 20 kg

x = 20 - $\frac{3}{5}$ - $\frac{1}{7}$

x = $\frac{700}{35}$ - $\frac{21}{35}$ - $\frac{5}{35}$ (LCM = 35)

x = $\frac{700 - 21 - 5}{35}$

x = $\frac{674}{35}$

x = 19 $\frac{9}{35}$

So the weight of third bucket is 19 $\frac{9}{35}$